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Chrono vs Kronometer: catalog facts
Chrono	Kronometer
Free Free and open source under the GPL 3.0 or later.	Free Kronometer is published under GPL-2.0 or later.
Android	Linux
Flexible alarm schedules, including date ranges Wake-up tasks such as math problems before dismissing	Records and sorts lap times Saves and resumes stopwatch sessions
Developers describe it as still in development No code changes since January 2025	Kronometer is available as a Linux desktop application.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-2.0-or-later
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.